US5289810A - Arrangement for supplying fuel from supply tank to internal combustion engine of motor vehicle - Google Patents

Arrangement for supplying fuel from supply tank to internal combustion engine of motor vehicle Download PDF

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Publication number
US5289810A
US5289810A US08/063,992 US6399293A US5289810A US 5289810 A US5289810 A US 5289810A US 6399293 A US6399293 A US 6399293A US 5289810 A US5289810 A US 5289810A
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US
United States
Prior art keywords
supply
arrangement
aggregate
supply tank
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/063,992
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English (en)
Inventor
Otto Bauer
Gerhard Geyer
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Assigned to ROBERT BOSCH GMBH reassignment ROBERT BOSCH GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAUER, OTTO, GEYER, GERHARD
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Publication of US5289810A publication Critical patent/US5289810A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • F02M37/025—Feeding by means of a liquid fuel-driven jet pump
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85954—Closed circulating system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86187—Plural tanks or compartments connected for serial flow
    • Y10T137/86228—With communicating opening in common walls of tanks or compartments

Definitions

  • the present invention relates to an arrangement for supplying fuel from a supply tank to an internal combustion engine of a motor vehicle.
  • the required feed flow for a predetermined suction flow consumption corresponding generally to at least the maximum motor consumption is substantially inversely proportional to the feeding pressure.
  • the feed pressure is substantially identical to the system pressure of the injection device of the internal combustion engine.
  • one feature of the present invention resides, briefly stated, in an arrangement for supplying fuel from a supply tank to an internal combustion engine, in which a check valve is provided in the branching conduit before the ejector as considered in the flow direction of fuel and the check valve opens the branching conduit upon exceeding a predetermined limiting pressure.
  • the check valve opens the branching conduit to the ejector after reaching a limiting pressure and thereby the disturbing deviation of a fuel volume flow through the feed nozzle of the ejector and therefore the resulting delay of the pressure increase in the injecting system during the starting phase of the internal combustion engine is avoided.
  • the action of the ejector after opening of the check valve is produced to a full extent since then the feeding pressure for which it is provided becomes available.
  • FIG. 1 is a view schematically showing a supplying arrangement in which a branching conduit after a supply aggregate is closed and provided with a mechanically operating check valve;
  • FIG. 2 is a view schematically showing of a part of a differently formed supplying arrangement with a supply aggregate having two pump stages and an electromagnetically actuating check valve.
  • An arrangement for supplying fuel shown in FIG. 1 has a supply tank 10 with a separate container-like chamber 12 in its interior.
  • the separate chamber 12 is cup-shaped.
  • a supply aggregate 14 is arranged in the cup 12 and includes an electric motor and a pump part accommodated in a joint housing.
  • the supply aggregate 14 aspirates fuel from the cup 12 and pumps it through a supply conduit 16 to an internal combustion engine 18 of a not shown motor vehicle.
  • a non-return valve 20 is arranged in the supply conduit 16. Since the supply conduit 14 has available fuel for the internal combustion engine in greater quantity than consumed, a return conduit 22 returns the excessive fuel back into the tank 10.
  • the opening 23 of the return conduit 22 is arranged so that the fuel which flows back is supplied to the supply cup 12. In the example shown in FIG.
  • a branching conduit 24 is connected with the supply conduit 16 and in particular before the check valve 20 as considered in the flow direction of the fuel.
  • a check valve 26 is arranged in the branching conduit 24.
  • the check valve 26 is formed in this embodiment as a diaphragm valve with a closing member arranged on a diaphragm 28 and spring loaded toward a closing position. It cooperates with a valve seat 29 which surrounds the opening of the branching conduit 24.
  • the branching conduit 24 has a portion 30 which extends near a bottom 11 of the tank.
  • An ejector (jet pump) 32 is arranged in the portion 30.
  • the ejector in this embodiment is arranged in a lying position and a pressure tube 34 of the ejector extends through a chamber wall 36 so as to open in the chamber 12.
  • the arrangement of the check valve 26 is formed so that it is located before the jet pump 32 as considered in the flow direction of the fuel.
  • the fuel supply aggregate 114 is formed as two-stage aggregate as can be seen in section of FIG. 2.
  • the fuel supply aggregate 114 has a flow pump 118 which operates as a pre-supply pump.
  • the pre-supply pump 118 supplies the fuel to a second supply stage which can be identified as a pump stage 120. From the pump stage 120 the fuel is pumped by the electric drive motor 116 to the supply conduit 16.
  • a return conduit 22 is provided, and its opening 23 is oriented to the separate cup 12.
  • the branching conduit 125 is connected with the supply system directly behind the pre-supply stage 118. From there a partial stream of fuel flows to the portion 130 of the branching conduit which extends near the bottom 11 of the tank. Also in this embodiment a ejector 32 is formed on the portion 130 and its pump tube 34 extends through the cup wall 36 of the chamber 10 so that the ejector 32 contributes to filling of the cap 12.
  • the check valve 126 is formed as an electromagnetically operating 2/2 valve. The valve 126 is formed so that in its stationary position shown in FIG. 2 it blocks the branching conduit 124. The actuation of the electromagnetic check valve 126 can be performed in a time-dependent manner so as to depend from starts of the supply aggregate 114 and/or in dependence on the pressure building up in the branching conduit 124.
  • a pulse is supplied through a control conductor 128, and the check valve 126 is transferred to its another operative position.
  • the branching conduit 124 is released, so that the fuel under pressure in the branching conduit 124 is pumped in the guiding portion 130 and the ejector 32 operates with full efficiency.
  • FIG. 1 can be designed also with an electrically controlled check valve analogous to FIG. 2.
  • the arrangement of FIG. 2 can be provided with a mechanically operating valve instead of the electrically operating valve.
  • the diaphragm valve shown in FIG. 1 can be replaced by another mechanically operating valve. At the same time it is simple and robust in construction and reliable in operation.
  • the electromagnetic valve 126 in accordance with the embodiment of FIG. 2 in addition to the above described operation also provides for a desired reduction of the feed pressure due to cyclical control of the magnetic valve.
  • the common feature is that a check valve 26 or 126 is arranged in the branching conduit 24 or 124 before the ejector (jet pump) 32 as considered in the flow direction of fuel, and the check valve opens in the branching conduit after exceeding a predetermined limiting value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Jet Pumps And Other Pumps (AREA)
US08/063,992 1992-07-29 1993-05-19 Arrangement for supplying fuel from supply tank to internal combustion engine of motor vehicle Expired - Lifetime US5289810A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4224981A DE4224981C2 (de) 1992-07-29 1992-07-29 Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges
DE4224981 1992-07-29

Publications (1)

Publication Number Publication Date
US5289810A true US5289810A (en) 1994-03-01

Family

ID=6464340

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/063,992 Expired - Lifetime US5289810A (en) 1992-07-29 1993-05-19 Arrangement for supplying fuel from supply tank to internal combustion engine of motor vehicle

Country Status (3)

Country Link
US (1) US5289810A (de)
JP (1) JPH06159177A (de)
DE (1) DE4224981C2 (de)

Cited By (78)

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US5396872A (en) * 1992-06-13 1995-03-14 Robert Bosch Gmbh Fuel tank with a subtank
US5421306A (en) * 1994-03-07 1995-06-06 Walbro Corporation Check valve for engine fuel delivery systems
US5452701A (en) * 1994-05-23 1995-09-26 Walbro Corporation Turbine fuel pump with fuel jet
US5469829A (en) * 1994-01-26 1995-11-28 Robert Bosch Gmbh Arrangement for supplying internal combustion engine with fuel from supply container
US5590631A (en) * 1994-01-14 1997-01-07 Walbro Corporation Fuel system accumulator
US5605133A (en) * 1995-11-20 1997-02-25 Walbro Corporation Fuel rail pressure control
US5613476A (en) * 1993-09-10 1997-03-25 Nippondenso Co., Ltd. Fuel supply device
US5623910A (en) * 1994-11-30 1997-04-29 Walbro Corporation Check and vent valve assembly
EP0773361A1 (de) 1995-11-13 1997-05-14 Ford Motor Company Brennstoffversorgungssystem für eine Brennkraftmaschine
US5636616A (en) * 1994-12-28 1997-06-10 Toyota Jidosha Kabushiki Kaisha Fuel supply apparatus for an internal combustion engine
US5647328A (en) * 1995-06-30 1997-07-15 Walbro Corporation In-tank fuel pump and reservoir
US5655504A (en) * 1994-04-22 1997-08-12 Mitsubishi Denki Kabushiki Kaisha Fuel supplying apparatus and pressure regulator
US5706785A (en) * 1995-03-23 1998-01-13 Pierburg Ag Fuel supply system for internal combustion engines
EP0819843A2 (de) * 1996-07-16 1998-01-21 VDO Adolf Schindling AG Strömungsventil
US5715864A (en) * 1995-09-13 1998-02-10 Nordson Corporation Safe-failing hydraulic pressure relieving/dumping valve
US5715798A (en) * 1997-02-24 1998-02-10 Ford Global Technologies, Inc. Fuel pump manifold
US5718207A (en) * 1995-08-30 1998-02-17 Nippondenso Co., Ltd. Fuel supply apparatus and method for supplying fuel according to an engine operating condition
US5732684A (en) * 1994-09-22 1998-03-31 Ford Global Technologies, Inc. Automotive fuel delivery system with pressure actuated auxiliary fuel pump
US5749345A (en) * 1995-11-02 1998-05-12 Bayerische Motoren Werke Aktiengesellschaft Fuel system
US5762047A (en) * 1996-02-14 1998-06-09 Mitsubishi Denki Kabushiki Kaisha Fuel supplying apparatus
US5785025A (en) * 1995-06-09 1998-07-28 Nippondenso Co., Ltd. Fuel supply for international combustion engine
US5797377A (en) * 1996-05-08 1998-08-25 Robert Bosch Gmbh Fuel feeding device for motor vehicles
US5979485A (en) * 1996-07-01 1999-11-09 Walbro Corporation Fuel tank level equalizer system
US5983869A (en) * 1997-07-26 1999-11-16 Lucas Industries Plc Fuel system
US5984148A (en) * 1998-09-22 1999-11-16 Nordson Corporation Self-cleaning pressure relief and bypass valve, dispensing apparatus and method
US6058911A (en) * 1997-04-07 2000-05-09 Nissan Motor Co., Ltd. Fuel chamber for automotive vehicle
US6113354A (en) * 1997-11-12 2000-09-05 Mannesmann Vdo Ag Fuel delivery device
US6123511A (en) * 1996-09-26 2000-09-26 Marwal Systems Fuel supplying apparatus for drawing off fuel for a motor vehicle tank having a jet pump deflector for priming
US6152114A (en) * 1997-11-28 2000-11-28 Robert Bosch Gmbh Control valve for a jet pump
FR2797309A1 (fr) * 1999-08-02 2001-02-09 Bosch Gmbh Robert Systeme et procede de commande pour un module d'alimentation en carburant a pression variable
FR2799798A1 (fr) * 1999-10-19 2001-04-20 Bosch Gmbh Robert Dispositif d'alimentation en carburant pour moteur d'automobile
US6253740B1 (en) * 1998-06-29 2001-07-03 Robert Bosch Gmbh Fuel supply device for an internal combustion engine
US6260543B1 (en) * 2000-05-19 2001-07-17 Visteon Global Technologies, Inc. Fuel delivery module with integrated filter
US6341623B1 (en) 2000-08-25 2002-01-29 Ford Global Technologies, Inc. Variable orifice, pressure compensated automated fuel jet pump
US6343589B1 (en) * 2000-02-01 2002-02-05 Walbro Corporation Fuel system with jet pump switching regulator
US6425378B1 (en) * 1998-07-23 2002-07-30 Robert Bosch Gmbh Device for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle
US6443693B1 (en) * 1999-11-23 2002-09-03 Mannesman Vdo Ag Fuel Pump
US6457945B2 (en) * 1999-12-22 2002-10-01 Robert Bosch Gmbh Fuel feeding module for motor vehicle
US6505644B2 (en) * 2000-06-09 2003-01-14 Delphi Technologies, Inc. Dual barrel jet fuel pump assembly for a fuel tank
US6619272B2 (en) * 2001-05-05 2003-09-16 Visteon Global Technologies, Inc. In-tank fuel supply unit
US6705298B2 (en) * 2002-05-20 2004-03-16 Denso International America, Inc. Fuel pump module
US20040149266A1 (en) * 2003-02-04 2004-08-05 George York Ported pressure relief valve
US20040182454A1 (en) * 2003-03-18 2004-09-23 Atwood Jeffrey M. Saddle tank siphon primer
US20040219029A1 (en) * 2003-05-02 2004-11-04 Stephan Kleppner Apparatus for delivering fuel from a tank to an internal combustion engine
US20050011558A1 (en) * 2003-07-14 2005-01-20 Vdo Automotive Corporation Reservoir assembly having interchangeable fuel suction unit and fuel pump assembly for vehicles
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US20050274361A1 (en) * 2004-06-14 2005-12-15 Aisan Kogyo Kabushiki Kaisha Fuel supply device for fuel returnless system
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US20070128049A1 (en) * 2005-12-01 2007-06-07 Michel Sanchez Jet pump apparatus for a vehicle fuel tank
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JP2005069171A (ja) * 2003-08-27 2005-03-17 Aisan Ind Co Ltd 燃料供給装置
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Cited By (107)

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Publication number Priority date Publication date Assignee Title
US5396872A (en) * 1992-06-13 1995-03-14 Robert Bosch Gmbh Fuel tank with a subtank
US5613476A (en) * 1993-09-10 1997-03-25 Nippondenso Co., Ltd. Fuel supply device
US5590631A (en) * 1994-01-14 1997-01-07 Walbro Corporation Fuel system accumulator
US5469829A (en) * 1994-01-26 1995-11-28 Robert Bosch Gmbh Arrangement for supplying internal combustion engine with fuel from supply container
US5421306A (en) * 1994-03-07 1995-06-06 Walbro Corporation Check valve for engine fuel delivery systems
US5655504A (en) * 1994-04-22 1997-08-12 Mitsubishi Denki Kabushiki Kaisha Fuel supplying apparatus and pressure regulator
US5452701A (en) * 1994-05-23 1995-09-26 Walbro Corporation Turbine fuel pump with fuel jet
US5732684A (en) * 1994-09-22 1998-03-31 Ford Global Technologies, Inc. Automotive fuel delivery system with pressure actuated auxiliary fuel pump
US5623910A (en) * 1994-11-30 1997-04-29 Walbro Corporation Check and vent valve assembly
US5636616A (en) * 1994-12-28 1997-06-10 Toyota Jidosha Kabushiki Kaisha Fuel supply apparatus for an internal combustion engine
US5706785A (en) * 1995-03-23 1998-01-13 Pierburg Ag Fuel supply system for internal combustion engines
US5785025A (en) * 1995-06-09 1998-07-28 Nippondenso Co., Ltd. Fuel supply for international combustion engine
US5647328A (en) * 1995-06-30 1997-07-15 Walbro Corporation In-tank fuel pump and reservoir
US5647329A (en) * 1995-06-30 1997-07-15 Walbro Corporation In-tank fuel pump and reservoir
US5718207A (en) * 1995-08-30 1998-02-17 Nippondenso Co., Ltd. Fuel supply apparatus and method for supplying fuel according to an engine operating condition
US5715864A (en) * 1995-09-13 1998-02-10 Nordson Corporation Safe-failing hydraulic pressure relieving/dumping valve
US5749345A (en) * 1995-11-02 1998-05-12 Bayerische Motoren Werke Aktiengesellschaft Fuel system
EP0773361A1 (de) 1995-11-13 1997-05-14 Ford Motor Company Brennstoffversorgungssystem für eine Brennkraftmaschine
US5605133A (en) * 1995-11-20 1997-02-25 Walbro Corporation Fuel rail pressure control
US5762047A (en) * 1996-02-14 1998-06-09 Mitsubishi Denki Kabushiki Kaisha Fuel supplying apparatus
US5797377A (en) * 1996-05-08 1998-08-25 Robert Bosch Gmbh Fuel feeding device for motor vehicles
US5979485A (en) * 1996-07-01 1999-11-09 Walbro Corporation Fuel tank level equalizer system
EP0819843A3 (de) * 1996-07-16 1998-05-27 VDO Adolf Schindling AG Strömungsventil
US5791317A (en) * 1996-07-16 1998-08-11 Vdo Adolf Schindling Ag Flow valve
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JPH06159177A (ja) 1994-06-07
DE4224981A1 (de) 1994-02-03
DE4224981C2 (de) 2003-06-26

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